package com.spring.diy;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

import javax.xml.parsers.SAXParser;

/**
 * @author:liuwei
 * @creatdate:2021-07-15-15:55
 */
//使用注解实现aop
@Aspect//标注这个类是一个切面
public class AnnotationPointCut {
	@Before("execution(* com.spring.service.UserServiceImpl.*(..))")
	public void before(){
		System.out.println("方法执行前");
	}
	@After("execution(* com.spring.service.UserServiceImpl.*(..))")
	public void after(){
		System.out.println("方法执行后");
	}
	//在环绕增强中，我们可以给定一个参数，代表我们要获取处理切入的点;
	@Around("execution(* com.spring.service.UserServiceImpl.*(..))")
	public void arount(ProceedingJoinPoint joinPoint) throws Throwable {
		System.out.println("环绕前");
		Signature signature = joinPoint.getSignature();//获得签名
		System.out.println("signature"+signature);
		//执行方法
		Object proceed = joinPoint.proceed();
		System.out.println("环绕后");
	}
}
